‘I’m upset because I was in there for a good night, but I left shortly afterwards because I didn’t feel safe anymore. Someone mentioned that the guy had started on them, but even if he did, punching the hell out of him isn’t OK.’

The woman, from west Hull, who is a former nightclub worker herself, said she ‘probably wouldn’t’ return to Atik after what happened, despite havingbeen a regular punter at the club in the past.

Another clubber described the scene as ‘shocking’ and ‘disgusting’.

One of the men appears to punch the victim in the face, while the other seems to punch him in the head. (Picture: Hull Daily Mail/MEN Media)The incident took place in the early hours of yesterday morning at Atik in Hull, East Yorkshire (Picture: Hull Daily Mail/MEN Media)

Nath Glanville-Houghton said: ‘No matter what he’s done, they [the bouncers] are taught ways to restrain, not be punching them about the way they have done.’

It is not known at this stage whether or not Humberside Police have been informed of the incident.

In a statement, a spokeswoman for Atik said: ‘We would like to apologise for what happened last night. The door supervisors’ behaviour was completely unacceptable and does not represent the high standards of customer care that we aspire to.

‘We would like to reassure our customers that they will not be working for the club again.’